Hybrid Mom/Fem modelling of shielding effectiveness of loaded rectangular enclosures with apertures

Abstract

This paper presents a hybrid formulation that combines MoM and edge-based vector FEM to the find the Shielding Effectiveness of an enclosure with an aperture. While the FEM is used to solve EM fields inside the enclosure, the MoM is used to solve the surface integrals related to the aperture field components, using equivalent surface currents. The hybrid method is applied to the enclosure with and without load. Results are compared with the analytical results and good agreement is reported. © 2009 IEEE.